Cement-based shrinkage-free wall hole-penetrating blocking material and preparation method and construction method

Abstract

The invention relates to cement-based shrinkage-free wall hole-penetrating blocking materials and a preparation method and a construction method. The materials comprise, by weight, 100 cement, 0-100 active admixture, 0.01-10 water reducing agent, 0.01-10 early strength agent, 0.1-30 expanding agent, 0-20 adhesion agent, 0-10 water repellent, 0.01-30 plastic retaining agent, 0.01-10 starch ether, 0-60 power filler and 0-300 aggregate. Compared with the prior art, the cement-based shrinkage-free wall hole-penetrating blocking materials have the advantages of being good in construction performance, and long in operational time. New mixing slurry has good plasticity, adhesive power and anti-falling performance, a caulking gun or a caulking machine can be used for pressing, injecting or sealing holes, a flowing phenomenon cannot appear even big holes are filled, and the big holes can be filled until the big holes are full and until reaching the deep hole, and completely sealed, and the sealing materials can fully come into play.

Description

technical field [0001] The invention belongs to the technical field of building materials and building construction, and in particular relates to a novel plugging material for building through-wall holes, a preparation method and a construction method thereof. Background technique [0002] There will be many holes through the wall during the construction, such as the bolt holes through the wall used for the tie between the inner and outer formwork of the wall formwork, the holes of the climbing frame on the outer wall, the holes through the wall for temporary scaffolding, and the air-conditioning holes, etc. For a large number of holes on the outer wall, if not handled properly, it is very easy to cause quality problems after the project is put into use. It is not uncommon to see engineering quality problems of external wall leakage due to the incomplete sealing of the through-wall holes, which brings great troubles to the owners, and disputes caused by this occur from time ...

AI Technical Summary

Problems solved by technology

[0002] There will be many holes through the wall during the construction, such as the bolt holes through the wall used for the tie between the inner and outer formwork of the wall formwork, the holes of the climbing frame on the outer wall, the holes through the wall for temporary scaffolding, and the air-conditioning holes, etc. For a large number of holes on the outer wall, if not handled properly, it is very easy to cause quality problems after the project is put into use

It is not uncommon to see engineering quality problems of external wall leakage due to insufficient sealing of the through-wall holes, which has brought great troubles to the owners, and disputes caused by this have occurred from time to time

At present, there is no unified standard for the treatment materials and methods of these holes. The most common method is to manually cut about 5cm from the outer facade of the hole and fill the hole with foaming agent or cement mortar. This method is not only inefficient High and can easily cause poor hole filling

There are also projects in which the foaming agent is filled in the middle of the hole, the cork is inserted on both sides of the inner and outer walls, and then waterproof mortar is filled in the inner and outer wall holes for treatment. Although this method has a better waterproof effect, the construction process Complicated, inefficient, and expensive

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